Auto window control



June 21, 1932. R. McNUTT 1,864,048

AUTO WINDOW CONTROL Filed March 15, 1931 2 Sheets-Sheet l INVENTOR 594/ y w/v ATTORNEY June 21, 1932. R. McNuTT 1,864,048

AUTO WINDOW CONTROL Filed March 13, 1951 2 Sheets-Sheet 2 INVENTOR ATTORN EY Patented June 21, 1932 UNITED STATES RALBE MCNU'IT, OF BAY VIEW, WASHINGTON AUTO WINDOW CONTROL Application filed March 13, 1931. Serial No. 522,429.

This invention relates to improvements in mechanisms for raising and lowering the glass window or panel in automobile doors.

The object of the invention is to provide 6 electrically operated means for raising and lowering the window in a much safer and faster manner than the manual means now employed.

The raising or lowering of the glass win- 1 dow is accomplished by merely pressing one of two buttons in the steering wheel, thus permittingthe driver to keep his hands on the wheel while operating the window. The device is also equipped with a safety feature 15 so that in case the driver has his arm out of the window, as in turning a corner, and the up button is accidentally pressed, the glass window in the door, traveling upward, would tend to clamp the arm of the driver between the top of the glass and the top of the door. However, before the glass reaches the top of the door, a safety bar is pressed and the electrical circuit is opened, stopping the ascent of the window. By merely pressing the down button, the glass is immediately lowered. If the down button is not released by the time the glass reaches the bottom, another safety switch is opened, breaking the electrical circuit and stoppin the descent of the glass.

The device is simple and cheap to construct and can be easily installed or built into the ordinary automobile door.

I accomplish these and other ob]ects by the peculiar arrangement and combination of the parts, as will be more fully explained in the followin specification, shown in the accompanying awin and finally pointed out in the appended aims.

In the drawings Figure 1 shows the inside of an automobile door with the covering removed, showing the raising and lowerin mechanism.

Figure 2 is an e arged view of the means employed in making contact between the in the door and the wiring in the boil y of the car.

igure 3 shows the switch used for ra1s1ng and lowering the windows.

Figure 4 shows a plan view of the steering wheel showing the up and down buttons and the usual button for the horn.

Figure 5 illustrates a diagram of the wiring employed.

Referring now more particularly to the drawings, reference numeral 1 represents the door proper. 2 represents the edge of the door, which may be of metal or wood. 3 represents the usual j amb and 4 the glass window. To the bottom of the glass window is attached a bar 5 formed with a slot 6. 7 is a worm gear rotatably mounted at 8 to aside frame 9 in the door. The gear 7 is rotated by means of a worm 10 mounted in bearings 11 secured to the frame 9. The worm gear 10 is coupled to an electric motor 12 through a shaft 13 and a coupling 14.

Rigidly secured to the worm gear 7 is a crank 15 provided at its upper end with a roller 16 which rides in the slot 6 when the worm gear 7 is rotated. When the worm gear 7 is rotated in a counterclockwise direction, the glass window will be raised and in a clockwise direction the glass window will be lowered.

In Figure 2, reference numeral 2 represents the edge of the door and 17 the frame of the car to which the door is hinged. 18 is a contact button secured to the edge 2 of the door but insulated from it by bushing 19. 20 is a spring secured to the door frame of the car 7 by means of stud 21 but insulated from it by means of bushing 22. When the door is closed, contact is made between button 18 of the door and the spring 20 of the frame of the car. 23 and 24 (Figure 1) represent the contacts of a switch which is normally closed. 25 and 26 represent the contact of a similar switch at the top of the door. The side 25 of this switch is connected to a bar 27 guided by pins 28. Any upward movement of bar 27 obviously raises side 25 of the switch breakin the contact. 18a,18b and 18-0 (Fi 1 represent contact buttons in the edge 0 the door which is the same as described in Figure 2. The motor 12 is of the reversible t The wiring of the door may be descri d as follows :A wire 29 passes from button 18b which connects with the battery, which will be described later, to the point 30 on the motor 12. 31 is another wire passing from the motor to the contact point 26 of the top switch. 32 is another wire passing from the side 25 of the switch to the control button 18a. 34 is a wire passing from the motor to the side 24 of the lower switch, and 33 is a wire passing from the side 23 of the same switch to the contact button 18-a of the door. The motor 12 is so wound that ifa battery is connected between wires 29'and 31, the motor will rotate in a direction which tends to raise the glass window, and if the battery be connected between wires 29 and 34, the motor will rotate in the opposite direction, which tends to lower the glass window.

Referring to Figure 3, 35 is a raising and lowering switch set into the hub 36 of the steering wheel 37. 38 is an insulating block in the bottom of the switch 35 to insulate all contact points from each other and from the car. 39 is one contact point to which connects a wire 40 which connects to spring 21-a which contacts with button 18-a. 42 is another contact point in the switch to which connects a wire 43 which connects to a spring 21a: which contacts with button l8c. 44 is another wire which connects with thelever 45 of the switch and passes to one side of the battery 46. 47 is another wire passing from the other side of the battery to the contact spring 21b which contacts with button 18.b of the door.

The operation is as follows :As'suming first that the glass window or panel is in a raised position, as shown in Figure 1, and it is desired to lower the window, the button marked DN (Figures 3, 4 and 5) is pressed. This closes a circuit between switch lever 45 and contact point 42, current now flows from battery 46 (Figure 5) through wire 44 to .switch lever 45 to contact point 42 through wire .43 to contact spring 21-0 to contact button 18-0 through wire 33 to contact point 23 of the lower out out switclrto contact point 24, through wire 34, through the motor 12 up through wire 29 to contact button 18b to spring 21.b through wire 47 back to battery 46. This rotates the motor in such a direction as to rotate the worm gear 7 (Figure 1) in a clockwise direction, which lowers the glass window 4. When the lass window is lowered as much as desire the button DN is released, stopping the movement of the window in its descent. If, however, the button is held down too long, theglass window will be lowered till the slotted bar 5, which is secured to the bot-- tom of the glass window, strikes the lug 47 (Figure l), which is attached to the contact 23 of the lower cut out switch. This will separate the contacts 23 and 24, thus breaking the circuit, which in turn stops the motor. r

Assuming now that the window is in a lowered position and it is desired to raise it,

the button marked UP (Figures 3, 4 and 5) is pressed. This closes the contact between switchbar 45 .and contact point 39, which rmits current to flow from battery 46 {Figure 5) throughwire 44 through switch bar 45 to contact point 39 throu h wire 40 to contact spring 21a to contact utton l8a through wire 32 to upper contact 25 of the upper out out switch, to contact point 26 through wire 31 through motor 12, back through wire 29 to contact button 18 to spring 21b and back to battery 46. The motor is now rotated in the opposite direction, which in turn causes the worm gear 7 (Figure. 1) to rotate in a counter-clockwise direction, which in turn through the crank 15 raises the window. The ascent of the window may be stopped any place by releasing the UP but ton. If the button, however, should be depressed too long, the top edge of the glass window 4 will strike bar 27, which in turn forces a contact 25 of the upper cut out switch and breaks the circuit between points 25 and 26, thus stopping the motor, which in turn stops the movement of the glass window.

While I have shown a particular form of embodiment of my invention, I am aware that many minor changes will readily suggest themselves to those skilled in the art without departing from the sfpirit and scope of my invention. I, there ore, avoid being limited to the particular form of embodiment which I have hereinabove described.

Having described my invention, what I claim as new and desire to protect by Letters Patent is:

1. In combination with an automobile having a door with a sliding window panel, a motor mounted in the door, connections between the motor and the window panel to raise and lower the latter, a pair of switches mounted in the steering wheel of the automobile, wiring. connected to the motor and extending to contacts on the edge of the door, wiring carried by the automobile and the steerin wheel, said wiring having contacts with w ich the switches cooperate, contacts in the last mentioned wiring to cooperate with the first mentioned contacts to close the circuit when the door is closed, cut outs in the first mentioned wiring above and below the window panel to break the circuit when the window panel reaches its lowermost or uppermost position,- and a source of electrical energy in the wiring.

2. In combination with an automobile having a door with a sliding window panel, a motor mounted in the door, connections between the motor and the window panel to raise and lower the latter, a pair of spring released switches mounted in the. steerin wheel of the automobile, wiring connecte desire to.

to the motor and extending to contacts on the edge of the door, wiring carried by the automobile and the steering wheel, said wiring having contacts with which the switches cooperate, contacts in the last mentioned wiring to cooperate with the first mentioned contacts to close the circuit when the door is closed, cut outs in the first mentioned wiring above and below the window panel to break the circuit when the window panel reaches its lowermost or uppermost position, and a source of electrical energy in the wiring.

In testimony whereof I aifix m signature.

RALPH ONUTT. 

